Grading & Drainage: Ayer vs Lexington
How do grading & drainage rules compare between Ayer, MA and Lexington, MA?
Ayer and Lexington have similar restriction levels.
Ayer, MA
Middlesex County
Grading work must meet local stormwater bylaws, the MA Wetlands Protection Act, and 780 CMR. Drainage cannot discharge onto neighbors or the public way.
View full Ayer rules →Lexington, MA
Middlesex County
Grading work must meet local stormwater bylaws, the MA Wetlands Protection Act, and 780 CMR. Drainage cannot discharge onto neighbors or the public way.
View full Lexington rules →Key Facts Comparison
| Fact | Ayer | Lexington |
|---|---|---|
| Slope away | 6 in over 10 ft | 6 in over 10 ft |
| No runoff to abutters | Common rule | Common rule |
| Wetland buffer | 100 ft | 100 ft |
| Code | 780 CMR | 780 CMR |
| Septic overlap | 310 CMR 15.00 | 310 CMR 15.00 |
Highlighted rows indicate differences between cities.
Ayer FAQ
Can I raise my yard above my neighbor?
Only if drainage does not discharge onto their property. Municipal bylaws and nuisance law limit regrading.
Do I need an engineer?
Larger projects or those near wetlands typically require a stamped drainage design.
Lexington FAQ
Can I raise my yard above my neighbor?
Only if drainage does not discharge onto their property. Municipal bylaws and nuisance law limit regrading.
Do I need an engineer?
Larger projects or those near wetlands typically require a stamped drainage design.
Compare other topics
See how Ayer and Lexington compare on other ordinance categories.
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